Isekai Executioner: The Serial Killer in Another World

Isekai Executioner: The Serial Killer in Another World
First tankōbon volume cover
シリアルキラー異世界に降り立つ
(Shiriaru Kirā Isekai ni Oritatsu)
Genre
Manga
Written byHomura Kawamoto
Illustrated byHiro
Published byShōnen Gahōsha
English publisher
  • NA: Orange Inc.
ImprintYoung King Comics
MagazineYoung King Lambda
Original runMay 25, 2022 – present
Volumes7
Manga
Serial Killer Isekai ni Oritatsu: Isekai Battle Royale
Written byHomura Kawamoto
Illustrated byHiro
Published byShōnen Gahōsha
ImprintYoung King Comics
MagazineYoung King
Original runAugust 9, 2024 – present
Volumes3

Isekai Executioner: The Serial Killer in Another World (シリアルキラー異世界に降り立つ, Shiriaru Kirā Isekai ni Oritatsu) is a Japanese manga series written by Homura Kawamoto and illustrated by Hiro. It began serialization in Shōnen Gahōsha's Young King Lambda online magazine in May 2022.

Plot

An unnamed serial killer is caught and executed. A goddess offers him reincarnation, but he regrets killing innocent people because of his urge to kill. The goddess offers redemption because she previously reincarnated 12 people to another world with special powers to defeat a demon king, but after defeating him, they gave in to greed, sadism, and a lust for power and are killing and bullying the citizens. The serial killer is reincarnated into that world as a girl named Shirukyi with no powers other than a pragmatic fighting style and charged with killing the other reincarnators. Shirukyi revels in being able to kill people who genuinely deserve it.

Publication

Written by Homura Kawamoto and illustrated by Hiro, Isekai Executioner: The Serial Killer in Another World began serialization in Shōnen Gahōsha's Young King Lambda online magazine on May 25, 2022.[2] Its chapters have been collected into seven tankōbon volumes as of December 2025.[3] The series is licensed digitally in English by Orange Inc.[4]

A spin-off manga by the same author and illustrator, titled Serial Killer Isekai ni Oritatsu: Isekai Battle Royale (シリアルキラー異世界に降り立つ　異世界バトルロイヤル, Shiriaru Kirā Isekai ni Oritatsu Isekai Batoru Roiyaru), began serialization in Shōnen Gahōsha's seinen manga magazine Young King on August 9, 2024.[5][6] The spin-off's chapters have been collected into three tankōbon volumes as of December 2025.[7]

Volumes

No. Release date ISBN
1December 26, 2022[8]978-4-7859-7302-5
2April 24, 2023[9]978-4-7859-7376-6
3November 27, 2023[10]978-4-7859-7537-1
4June 6, 2024[11]978-4-7859-7676-7
5December 6, 2024[12]978-4-7859-7820-4
6May 2, 2025[13]978-4-7859-7929-4
7December 26, 2025[3]978-4-7859-8107-5

Serial Killer Isekai ni Oritatsu: Isekai Battle Royale

No. Release date ISBN
1January 7, 2025[14]978-4-7859-7845-7
2June 9, 2025[15]978-4-7859-7954-6
3December 26, 2025[7]978-4-7859-8108-2

References

  1. ^ a b 殺人鬼VS転生者！異世界サスペンス「シリアルキラー異世界に降り立つ」. Comic Natalie (in Japanese). Natasha, Inc. December 26, 2022. Retrieved February 9, 2026.
  2. ^ ヤングキングからトガった異世界マンガ誌誕生、ハンバーガーちゃんの転生絵日記など. Comic Natalie (in Japanese). Natasha, Inc. May 25, 2022. Retrieved February 9, 2026.
  3. ^ a b シリアルキラー異世界に降り立つ　第7巻 (in Japanese). Shōnen Gahōsha. Retrieved February 9, 2026.
  4. ^ Cayanan, Joanna (October 18, 2024). "Orange Inc.'s e-Bookstore Service emaqi Adds Isekai Executioner: The Serial Killer in Another World, Suzuki Sensei Manga". Anime News Network. Retrieved February 9, 2026.
  5. ^ Tai, Anita (July 26, 2024). "Homura Kawamoto Launches Spinoff of Ichigo Hitotsubu, Hiro's Serial Killer: Isekai ni Oritatsu Manga". Anime News Network. Retrieved February 9, 2026.
  6. ^ 「シリアルキラー異世界に降り立つ」の外伝が開幕、原作者の正体は河本ほむら. Comic Natalie (in Japanese). Natasha, Inc. August 9, 2024. Retrieved February 9, 2026.
  7. ^ a b シリアルキラー異世界に降り立つ　異世界バトルロイヤル　第3巻 (in Japanese). Shōnen Gahōsha. Retrieved February 9, 2026.
  8. ^ シリアルキラー異世界に降り立つ　第1巻 (in Japanese). Shōnen Gahōsha. Retrieved February 9, 2026.
  9. ^ シリアルキラー異世界に降り立つ　第2巻 (in Japanese). Shōnen Gahōsha. Retrieved February 9, 2026.
  10. ^ シリアルキラー異世界に降り立つ　第3巻 (in Japanese). Shōnen Gahōsha. Retrieved February 9, 2026.
  11. ^ シリアルキラー異世界に降り立つ　第4巻 (in Japanese). Shōnen Gahōsha. Retrieved February 9, 2026.
  12. ^ シリアルキラー異世界に降り立つ　第5巻 (in Japanese). Shōnen Gahōsha. Retrieved February 9, 2026.
  13. ^ シリアルキラー異世界に降り立つ　第6巻 (in Japanese). Shōnen Gahōsha. Retrieved February 9, 2026.
  14. ^ シリアルキラー異世界に降り立つ　異世界バトルロイヤル　第1巻 (in Japanese). Shōnen Gahōsha. Retrieved February 9, 2026.
  15. ^ シリアルキラー異世界に降り立つ　異世界バトルロイヤル　第2巻 (in Japanese). Shōnen Gahōsha. Retrieved February 9, 2026.
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